Copying device.



To all, whnm it may concern: L

- UNITEDsTATEs PATENT OFFICE.

HENRY H. HARRISON, OF NEW YORK, N. Y.

coPYlNe. DEvlcE. I

` i Specification of Lettersl Patent; Application-filed. January' 1906. ser'iaiiro. 294,871.

Be it`kn`own that I, HENRY H. HARRIsoN,

a citizen of the United States, and a resident of the'cit of New York,borough of Manhattan, in t e county and State of NewYork,

have inventedwa new `and Improved Cop ing Device, of which the following is a full, c ear, and exact description. r 4

The invention relates to a copying device intended for use in' connection with the socalled hectograph'copying composition."

It is particularly deslgned as a hand-operated device, although it may be made of a Alarge size and arranged to operatepn and having a geared connection with a permanent platen, as will be fully understood by' persons skilled in the art,

Mg present invention particularly resides in Vt e manner of applymg the hectographl Fig. 2 is a top view of the same, and Fig. 3 is a detail section on the line 3 3 of Fig. 2.

The body 10 of the device has its lower or working surface l10a of essentially semicircular or arc-shaped contour, while the` opposite or upper part of the body may be open, as indicated at 1 1 for lightness` of construction, although this is not essential. The said body is provlded at its upper side with ahandle 12,

' which s ans the opening 11 and facilitates the manip ation of thel co ying device. As

shown best in Fig. 3, the ecto aphl composition 14 is'applied v`to the midd e'portion of'a Sheet of fabrlc or other durable flexible mate.-

rial 15, said composition bein made permanently to adhere thereto, and t eback of said vsheet 15 of fabric or other material is provided with a covering 16 of oil composition or other'impervious substance. VThese materials 14, 15,l and 16, arranged as described,

form a mass Vof hectographc material permanently secured' to a tough flexible sheet, which, owin to the oil composition onthe back thereo .will not permit the passa e of moisture and will always present a dry c ean to the outer or'` working surface ofl the ody 10 with the hectographic material on thev The ends of said sheet 15 are not outer side. cov'ered with the hectographicl material and -wound, respectively, over rollers or drums, '17

ratena June 19, 1906.'

surface. Said sheet 15, With the materials 14 and 16 applied thereto, as described, is ap lied,

and 18. These rollersare arranged, respectively, at the e'ndsof the copying device. The

. roller-17 is mounted to turn in brackets 19, a 'which are fastened to the sides of the body and project labove the same, the roller being i preferably slotted 'to'receive the end of the abric :15, as indicated inFig. 3. Said roller 17 1s provided with a s rin -arm 20, and thisl is adapted to be held 1n a 00k 21, suitably sustained on the body. As here shown, it is secured by a shank 22, which is-fastened lto one side of the body and proj ects horizontall between the openingv 11 thereof. Said hoo .V21 may be otherwise positioned on the body without departingfromA the spirit of my `invention.

The roller `18 is mounted in bracket-*plates 23, which project upward from the end of the body opposite that on which vthe roller 17 is i located. This roller 18 is also slotted, as shown, and is provided at one end -with a knob 24'facilitating turning the roller. The roller is also provided with a ratchet 25 at the end adj acent to the knob', and this is engaged by a pawl 26, which is fitted on. one ofithe bracket-plates 23 and pressed yieldingly into active position by a spring 27. .I In the use of the device the Sheet 15 has the ,ends engaged with the rollers 17 and' 18, and the roller 18,,is then turned so as to tauten the Sheet and draw the hectographic. material firmly over thev working surface of the body 10. I After' this has'been done the final tensioning of the fabricsheet 15 and its attached substance -is efiected by turnng downward the springarm' 20 intov the position shown in' Fig. 1 and engagirg the same with the hook21. This completes the operation of firmly draw- Ioo ing the fabric over' the curved` edge of the body10, and the copyingdevice isnow adju'sted forv operation.- The copying operation is 'carried outin 'the' usual'manner, the copy be ing impressed on the hectograph material 15- andftransferred therefrom by rockin *thecopying device over-the sheet on 'whic 'the copy is to be im ressed. The ink of the copy may be washe off of the hectogra h material from time to time, as will be ful y understood from. the prior art, and any number of separate sheets of the materialV 15, With the hectographic material applied, may be kept on hand and transferred from time to time, as

desired or required.

It Will be seen that the device providesa4 edge of the laten.

Having t us described the preferred form of my invention,what Lclaim as new, and desire to secure by Letters Patent, is.-

1. A copying device com rising a body, the lower or working surface o which is curved, a handle attached to the body, drums mounted to turn on the body respectively at the ends of the curved Working surface thereof, a pawl and ratchet in connection With one drum adjustably to hold the same, a resilient arm attached to the other drum, and a retaining device secured to the body and adapted to hold said resilient arm. f

2. A copying device comprising a body with a curved working or lower surface, a handle on the body, two drums secured to the body respectively at the ends of said curved working surface thereof, means for holding one drum against rotation, a resilient arm attached to the other drum, and a device for retaining said resilient arm in position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

'HENRY H. HARRISON.

Witnesses:

IsAAo B. OWENs. J No. M. RITTER. 

